n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 6 |
4 | 12 |
5 | 48 |
6 | 336 |
7 | 3696 |
8 | 59136 |
9 | 1300992 |
10 | 37728768 |
11 | 1395964416 |
12 | 64214363136 |
13 | 3596004335616 |
14 | 240932290486272 |
15 | 19033650948415488 |
16 | 1751095887254224896 |
17 | 185616164048947838976 |
18 | 22459555849922688516096 |
[1,3,6,12,48,336,3696,59136,1300992,37728768, 1395964416,64214363136,3596004335616, 240932290486272,19033650948415488, 1751095887254224896,185616164048947838976, 22459555849922688516096] |